Gage for printing-presses.



J. STIVERS.

GAGE FOR PRINTING PRESSES.

APPLICATION FILED MAY 4, 1915.

Patented Dec. 7, 1915.

2 SHEETS-SHEET I.

IIVI/EIVTOH ve di amt A TTOH/VEKS.

J. STIVERS.

GAGE FOR PRINTING PRESSES.

APPLICATION FILED MAY 4, 1915.

Patented Dec. 7, 1915.

2 SHEETS-SHEET 2.

big a Era A TTOR/VEK-S c m w T a m H u w m c p A n u a W p 1. m M u 1 u c JACKSON STIVERS, or SAN Fn NoIsco', o LIronNm.

nit ra on.

GAGE non PRINTING-PBIESSES.

To all whom z'tmay concern; I

Be it known that L'Jaolison S'rrvnns, a

a citizen of the United States, and a resident of San Francisco, in thepounty of San Francisco and Stateof California,.have 1nvented a new and Improved Gage for Printing-Presses, of which the following is a full, clear, and exact description.

Among the principal objects which the present invention has in view are: to facilitate increasingspeed of operation of obprintlng presses; to facilitate hand feeding incident to the employment of such presses; and to reduce the manual labor commonly incident to feeding a press of the character,

mentioned. Dmwings.-F1gure 1 1s a perspective v1ew showing portions of a printing, press platen,

gripper and gage constructed and arranged in accordance with the present invention;

Fig. 2 is a face viewofa portion .of the platen, showing in conjunction therewith a fragment of a gripper finger and a gage constructed and arranged in accordance with the present invention, said gage being shown in its relaxed disposition; Fig. '3 is a section taken as on the line 33 in Fig.2; Fig. 4

shows a fragment of a platen forprinting V presses, a gripper finger therefor, and a gage constructed and arranged in accordance with the present invention, the view showing theactive disposition of said gripper finger and gage when. actively disposed;

Fig. 5 is a section on an enlarged scale taken as on the line 55 in Fig. 4:; Fig. v6 is a section on the same scale, taken as on .the line 66in Fig. 4; Fig. 7 is a'section on the same scale, taken as onthe line 77 in Fig. 4; Fig. .8 is a cross section on they same scale, taken as on the line 88 in Fig. 1; F ig."9 is a detail view in perspective, on an enlarged scale, showinga detail of the hinge plate with which the gage is provided; Fig. 10 is a detail view, showing in perspective an actuating arm for the gage mechanism; Fig. 11 is a detail view, on an enlarged scale, showing a section taken as on the line 11,11 in Fig. 10; Figs. 12, 13 and 1 4 are detail views in perspective of the adjustableleg, presser-foot and retaining clip therefor; Fig. 15 is a detail view in perspective showing the hingeplate, thrust bar and guide plate for the actuating arm of the gage; Fig. 16 is a detail View in perspective showing said guide plate disassociated from the Specification of Letters Patent. Paijgnted Dec, "2, 115 Application filed May 4, 1915. Serial No. 25,823.

hinge plate and actuating arm; Fig. 17 is a detail view in perspective showing a modi-' Head form of the presser-foot; FigL lS is a detail View 1n perspective. showing a modified form of the guide plate; Fig. 19 is a detail view in perspective of a modified form of the presser-foot with which the gage is provided.

Description-As indicatedfabove, the in-- vention isparticularly adapted for instal lation. on the type of printing machines kno wnas job-printing machines, or those having a rocking or reciprocating platen to which is fed the article to be printed upon when the platen is in open position. At

present, the. platen is provided with a tympan 25. This is usually provided with gage pins, such as indicated in Figs. 1 and 2 of the drawings by the numeral 26. These pins are usually disposed coincident with the lower and left-handregister lines for the placement of the article to be printed upon. With a fast-moving press it is difficult to remove the article being printed, place a'clean article and properly adjust the same to the-gage pins,and particularly to the gage pins regulatingthe' vertical margin of the article, in time with the movement of the press. This necessitates either. that the speed of the press shallbe reduced to permit the necessary time for feeding, or that the press be arrested withthe platen open to allow for the manipulation stated; I

When employing a gage. constructed and arranged in accordance with the present disclosure, a reciprocating gage plate 27 is provided as a substitute for the gage pins above mentioned, which are usually located on the vertical register lines, 28 with which the tympan 25 is furnished. The plate 27 is rigidly mounted on a rectangular, hollow frame 29, and is primarily set when mounting the gage upon the tympan to coincide with the line 28 when fully extended in the direction thereof. To reciprocate the frame 29 in the manner indicated, the upper wall of said frame has formed therein an oblique slot 30, wherein rests a raised, obliquelydisposed fin 31.

The frame 29isoperatively mounted upon a clip plate 32 and between the upturned sides 33 thereof, The clip plate'32 is provided on each edge with a series of indents 6%. These indents are employed to indicate whereeviincisiions 35, 36 and' 3f7 are made in the tyinpan 25. These incisions being pro-v nuts 40.v

The clip plate 32 'is provided iyithstud screws 4-1, which extend through the slide plate 39-. -When the nuts" TO are tightened, c the t-yr'np'an 2-5is clamped-rigidly betweenthe clip-plate 32 and theendsot the slide plate 3 9,'where the'screwsl are located; Interinediate said srews the plate 39; is disposed in spaced-relation to the clip plate 32 toreceiy'e Ztheunder 'or inner Wall of'th e frame 29,

V which slides therebetweent At-the-far'-end ofrthe slide plate i) is piyotally-Il nounted a hinge plate Thehinge lace-eels constr-ncted to a -.desired=-width, 'a n'dgi-s pivotally connected toa t-hrus't arrn iii-on which arm and the forward end thereof is to be found v *tliefinfll; As' best shown inFig; 3 of the as v a restsofi theslide plate-39 and o n theraised drawings;the torward end ofthe arm 43 portion {thereof hich is encompassed by the frame 29. Thisend ofthe-arm 43 is widened c "toforni a palette likestructure4A the-edges whereo-i engage the sides 33ozt=the clip plate,

to'b'e guidedEtherebyL shown best n Fig. 2 oi the drawings, the oblique poisition I slide plate 39, being held in thisjpositionhy. 45.

ot the fin causes said fin te-operate Within theslot iiCl-asa cam, moving the frame 29 in the dir'ection'shown-by the arrows a-inFigs. land t of the-'drawinggxyhen thevanm iii is v moved in ,theydirectfwn indicatedby the arrow b shown ii -Fig ear the drawings. As "above indicated, the extreme forward'posi- :tiono f the arm 43 andsfin 3Loarried thereby advances the plate 271130 the register line 28 inarked 'c-n theatympan 25. The norn al position of the plate &2 perpendicular toithe the arm e3 andifinsi the eof, the withdrawal of whichfroni the slot 30 is limited; asshown best in Fig. 2 oit'z the drawings; The plate 42 is inoyed to the position described by azicoil spring 45 oneend where-Otis: anchored in a periorationAG in the slide plate, While the other .end similar-11y engages the face-plate efi as hest shown in Fig. 9- ottheldrawings. g In this-position the hinge plate 42 Rand face pie-tee? serve to support the actuating arm 48 and leg t9, the former of which is Qprovide d .to engage the gripper finger 50, and

V i-the latter oi lcwh ich rests upon-theapaperor tends. *The aneho'redendbi the latch52 is 7 material being printed upon.

The. 3131148 has a pentoratio'nfil, through which the bent-end of a spring .1atch52 veaielamped by the overtur-ned: edge '53 of the arm as, shown; best in Fig; '11 of, :the draw- I :ings fl he fiunctionl attire-latch -52 to 511p apart 'thebrZaehet plate ifitmz h eh is-;.norfma-l ly extended inthe of; the gripper finger 5O.v The plate '54: has a plurality of'per-i forations 55, whereby it maybe held in dif 'ff'erfent degrees of extension'froln the arm 48, to ncrease or dunlnish the operating leverage of" the gage; The arm as is supported Runner for saidbracket '56. The bracket 56 has a perforation 58, which is adaptedto by a bracket 56, the end 57 of which extends between the sides of the plate 48 to form a register withtheend'zoi thespring 45 Where 7 it passes through the face plate The face-plate 147 is? held pressedatoiyard 1 i {the hinge plate 42 by the springsij. When the bracket 56"is forced betweentheiaceand hinge-plates, it is held firnilyin position andpreyented troin rattling. The arm} 48 and bracket plate tie-are held yieldinglyin operative position. As a result ot'wth-i-s construction, if by any reason'the fin Sl-orthe frame 29-beconies jammed or hesitates to anon When"theplate 5a is :forcedfagamst the finger5t), the spring e5 yields, permitting the-plate 4e7 to rock backward-Without! ins quring the plate 42 or parts connected therewith. r

The leg as is provided to hold separable auxiliary grippers,s uh as60, 61 and. 62, the

two last mentioned being modified, forms. of

the presser-foot device.' In all the forms a bayonet slot 63 is furnished to fit over the supporting sections '64- with which theleg li9aisprovided. The hooked extension of each of the grippers extends Wlbl1l11.-.i3l18 channel 65 formed in said leg, as seen best l-n Fig; of the drawings. Thehook-ended p'late 66 is used to reinforce the construction, and hasla perforationtfl to receive the endof the spring e5 when extended through the plate &7, as seen best in Fig. 8 oithe drawings i fasxztol-lowsz iifter ha ing-been. set on {the tympan 25 in the manner above drcrihed,

it mute found that When-the platen ,iS

opened,- as shown in Fig; 1 of the drawings, the" springcii .lifts the vplate T2 andar1net8 and the lega to a positionlperpendicular Ito the platen, Jtyn pan and slidevplate 39.

The plate 54, as shown, isin the .path-ofethe gripperifinger 50. In: this position; the gage.

plate 27 a is retracted from the register line 28. The pins26, however, are permanently in register With the lower register} line proaided on-thetyrnpan25. It isobvious from the foregoing .that the operatonin feeding Lthe vpaper or article to be imprinted, is not required to' exercise any care or aocuraey.

The-paper ;or article is delivered; quickly to the press, the single -,require1nent; on the part o-iithejaoperator being that the paper-shall be delivered to xthe. tympan; lpreiierably at the outer side of the register line 28. To insure this,}the, operator, as .a rule, moves the paper V0111 artmleztowardtm plate 21 preterll 3 (l ably against said plate. When now, the platen closes to the type-bed, the finger 50 moves to meet the platen and, pressing upon the plate 5%, moves the arm l8 to overhe said tympan, the spring l5 yielding to permit the plate 42 to swing on its pivotal connection with the slide plate 39. The leg 49 is correspondingly moved so that when said arm 48 and the finger 5O engage the tympan 25, the gripper (30 rests upon, to steady the paper or article being printed. As in the ordinary action of the gripper fingers, the engagement of the same with the tympan is completed prior to the imprint being made on the article being printed. Also, the grip per finger engages the tympan at the moment when the platen is parted from the type-bed, thereby insuring the proper stripping of the paper or article being printed. In the present case, the gripper 60 or the modified forms thereof indicated by the numerals 61 and 62, perform this ofiice, being held in engagement with the article by the gripper fingers.

. It will be noted that as the hinge plate L2 swings on its pivot, the thrust arm 43 and fin 31 carried thereby are moved forward, the latter acting on the frame 29 as a cam to move the same in the direction indicated by the arrow 0: in Figs. 1 and l of the drawings, to more the plate 27 to the register line 28. The paper or article to be imprinted is engaged by said plate 27 and thereby moved to perfect register prior to the engagement thereof by the gripper 60.

It is obvious that with a gage constructed and arranged as above described and as shown in the accompanying drawings, an automatic register is thus effected, facilitating a more rapid hand feed than is possible in presses as at present constructed.

To facilitate the adjustment of the gage to the work to be performed, the brackets 56 are sometimes elongated, as shown in Fig. 18 of the drawings. With such brackets in service, it is evident that the arm 48 may be proportionately removed from the plate as and the body of the gage. It is also desirable at times to vary the form of the grippers as illustrated in the forms thereof shown in Figs. 17 and 19 of the drawings. It will be understood that a variety of such forms may be employed. The set pins 68 and 69 shown in the drawings are employed in the present invention to prevent the work from toppling or falling from the face of the tympan after the gripper 60 has been lifted therefrom.

Claims:

1. A gage as characterized, comprising a laterally-movable thrust plate having an inclined slot therein; a longitudinally-movable thrust arm having a member constantly engaging said slot for shifting said thrust plate; an auxiliary gripper for resting upon the material being printed to hold the same on the tympanv of a press; a leg pivotally mounted and operatively connected with said the tympan of a printing press; means for clamping said slide plate and clip plate upon said tympan; a hinge plate pivotally mounted on said slide plate; an auxiliary gripper mounted on said hinge plate and adapted to rest upon said tympan or member resting thereon to be imprinted; an actuating arm mounted on said hinge plate; and a spring operatively connecting said hinge plate and arm and said slide plate.

4. A gage as characterized, comprising a slide plate; a clip plate, the ends of said clip plate being adapted for extension below the tympan of a printing press; means for clamping said slide plate and clip plate upon said tympan; a hinge plate pivotally mounted on said slide plate; an auxiliary gripper mounted on said hinge plate and adapted to rest upon'said tympan or member resting thereon to be imprinted; an actuating arm mounted on said hinge plate; means for yieldingly connecting said arm and hinge plate; and a bracket plate mounted on said arm to laterally extend therefrom in the path of a gripper finger of the press on which said gage is installed.

5. A gage as characterized, comprising a slide plate; a clip plate, the ends of said clip plate being adapted for extension below the tympan of a printing press; means for clamping said slide plate and clip plate upon said tympan; a hinge plate pivotally mounted on said slide plate; an auxiliary gripper mounted on said hinge plate and adapted to rest upon said tympan or member resting thereon to be imprinted; an actuating arm mounted on said hinge plate; means for yieldingly connecting said arm and hinge plate; and a bracket plate adjustably mounted on said arm and laterally extensible therefrom into the path of the gripper finger of the press on which said gage is installed.

6. A gage as characterized, comprising a plate for mounting upon the tympan of a printing press; an auxiliary gripper leg pivotally connected with said plate; means operatively connected with said auxiliary leg, extensible into the path of the gripper finger ofisaid press; a; removable;;gripper In testimony; whereof I hELVQ signed'my member mounted: on sa1-d-1eg;,t0 press;up0n name' to th ls speclficatlongin the-presence of 10 the-tympan of Sal-d press;- andmeans forudtW-o subscrlblng W1tIlGSSeS.- V

justably mounting. said gripper; memberon a 5 said leg, said means embodyingaplunalit-y V v JACKSON STIVERS ofisupporting sections formed-1 onusaid leg, Witnesses: V

and a bayonet slot formed in the: connecting F. L. WOODBUBN, I endoi? said gripper-member; v S'.-.NEL soN;

Qo'pies; of thi supatent may be obtained. for five cents each, by addressingihe. Cdmmissionerpf Patents,

- WashingtomD. C. 

